Titanium Asc1

[Kb Cool]

After many years of flawless use my Asc1 has bit the dust. It no longer appears to be able to communicate with my receiver. I originally thought my cable was bad going out to the lnb as i wasn't getting a signal any longer. So, after inspecting that and finding nothing wrong i decided to plug the lnb cable into my receiver bypassing the ASC1 and that did the trick. I now have a picture. So, from i gather is the ASC1 is not outputting 13/18 volts nor does it let the voltage coming from the receiver bypass to the lnb either. It also isn't accepting diseq commands. Anybody else experience this issue? I'm currently using the ASC1 manually as it still controls polarity and moves the dish just fine. You just have to do it manually.

 

[Titanium]

The ASC1 does not pass voltage, the LNB DC voltage is provided by the ASC1 and the STB voltage is blocked.
I assume that you are using a feedhorn/LNB with servo motor?

1. Does the ASC1 respond to the STB DiSEqC move commands? and ... Does it respond to STB polarity changes (show polarity changes on the display)?
2. What is the ASC1 LNB Power menu setting selection?
3. What is the DC voltage measurement at the ASC1 LNB port?
4. Is the ASC1 AC Voltage selector (near the rear power plug) set to the correct voltage?

 

[Kb Cool]

The ASC1 does not pass voltage, the LNB DC voltage is provided by the ASC1 and the STB voltage is blocked.
I assume that you are using a feedhorn/LNB with servo motor?

1. Does the ASC1 respond to the STB DiSEqC move commands? and ... Does it respond to STB polarity changes (show polarity changes on the display)?
2. What is the ASC1 LNB Power menu setting selection?
3. What is the DC voltage measurement at the ASC1 LNB port?
4. Is the ASC1 AC Voltage selector (near the rear power plug) set to the correct voltage

The ASC1 does not pass voltage, the LNB DC voltage is provided by the ASC1 and the STB voltage is blocked.
I assume that you are using a feedhorn/LNB with servo motor?

1. Does the ASC1 respond to the STB DiSEqC move commands? and ... Does it respond to STB polarity changes (show polarity changes on the display)? No move commands but i believe polarity was switching.
2. What is the ASC1 LNB Power menu setting selection? I tried all of them and nothing worked.
3. What is the DC voltage measurement at the ASC1 LNB port? Zero, if i'm measuring correctly. I put one lead on center electrode (hot) and other on the outside of the connector (ground).
4. Is the ASC1 AC Voltage selector (near the rear power plug) set to the correct voltage? Yes, its set on 115v

 

[Titanium]

If no power is outputted from the ASC1 LNB port and no DiSEqC command sensing, likely a power regulator has failed or no power to the f-connector PCB.

 

[Kb Cool]

If no power is outputted from the ASC1 LNB port and no DiSEqC command sensing, likely a power regulator has failed or no power to the f-connector PCB.

Do you repair them?

 

[Titanium]

Sorry, we no longer offer repair services on the ASC1.

 

[Kb Cool]

Sorry, we no longer offer repair services on the

Sorry, we no longer offer repair services on the ASC1.

Ok . well thank you for the quick replies. I really don't want to move on to a vbox and a LNBF but i may have to. Since nothing else is really available anymore. In the meantime i think i have directv lnb power inserter around here some where and i will give that a try. Since the asc1 is still switching polarity.

 

[Kb Cool]

Sorry, we no longer offer repair services on the ASC1.

I hooked the power inserter to the lnb out of the asc1 and now it's working as far as polarity switching and i have a signal. But still no automated movement from the diseq 1.2 commands sent from the receiver. I have to use the front panel for east and west movement.
Do you have an idea which part needs replacing and would it be available at electronics supply house?

 

[Titanium]

No magical component to fix...

As the issue affects both input DiSEqC sensing and output voltage, i would be suspect of the source of the medium voltage suppy. Could be as simple as reseating the ribbon connectos between tbe main and F-fitting PCB.

Place the ASC1 menu for fixed 13V or 18v output and start probing for dc voltage starting at the F-fitting PCB and work back towards the voltage regulator. Basic circuit flow troubleshooting.

 

[Kb Cool]

No magical component to fix...

As the issue affects both input DiSEqC sensing and output voltage, i would be suspect of the source of the medium voltage suppy. Could be as simple as reseating the ribbon connectos between tbe main and F-fitting PCB.

Place the ASC1 menu for fixed 13V or 18v output and start probing for dc voltage starting at the F-fitting PCB and work back towards the voltage regulator. Basic circuit flow troubleshooting.

Ok i'll have to open it up and take a look. Thank You

 

[primestar31]

Ok i'll have to open it up and take a look. Thank You

I'd reseat any cables first, pull off connectors, then reseat them back again. Then look over carefully for any burned traces on the board, or burned/popped components. Then, look for bulged tops on electrolytic caps.

IF there's anything really blatant like that, replace them, or fix the traces, etc.

arlo Any input?